JP3199412B2 - Automatic folding device for packaging materials - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION The present invention relates to a belt-shaped part which is bent on the basis of two parallel crest lines along the longitudinal direction invented earlier by the inventor and two trough lines outside thereof. Have
Wrapping paper in which the back surface of the rising portion between the mountain line and the valley line and the back surface of the band-shaped portion are thermally bonded (Japanese Utility Model Publication No. 03-35647).
No.) manufacturing apparatus.

[0002]

2. Description of the Related Art Packaging paper as disclosed in Japanese Utility Model Publication No. 03-35647 is known, but an apparatus for continuously manufacturing the same from roll paper is not known.

[0003]

Therefore, there has been a demand for an apparatus for manufacturing wrapping paper for use in packaging confectionery or the like having a continuous band (ears) from roll paper. Therefore, an object of the present invention is to provide an apparatus capable of manufacturing a large amount of wrapping paper (material) having such a band portion.

[0004]

That is, the present invention provides a base on which a wrapping material slides, a vertical plate joined to a position corresponding to the center line of the wrapping paper sliding on the base, and A packaging material comprising a fixed base having a T-shaped cross section formed of a horizontal plate, and a pair of bent plates mounted between the base and the horizontal plate of the fixed base in parallel with a vertical plate of the fixed base at a predetermined distance. A bent portion, at least a heat roller for holding the bent ear portion behind the bent portion and pressing while applying heat, and at least a pair of at least one pair for feeding the paper while holding the packaging material behind the bent portion. It is configured to pull the packaging material to the discharge side in a state that the packaging material is located on the horizontal plate of the fixed base, between the horizontal plate and the bent plate, and between the bent plate and the substrate. Equipment for this purpose It is formed. When the wrapping paper is reduced in the width direction, a notch is provided on the wrapping material supply side of the folded plate so as to increase the distance from the vertical plate in the supply side direction so that the wrapping paper does not wrinkle. good.

[0005]

In the device according to the present invention, when the packaging material is supplied to the device using a material having a heat-fusible material adhered to the back surface of the packaging material, the packaging material which was initially horizontal is fixed. By inserting it into the gap between the horizontal plate, the bent plate and the base of the table, the width adjustment function works except for the part on the fixed table,
Crests are formed along the ends of the horizontal plate, and valleys are formed along the ends of the bent plate, so that two ears are formed below.

[0006] The folded packaging material is led to a heat roller for thermocompression bonding, where the lugs are thermocompression bonded.
At this time, the crest forming portion where the back surfaces overlap each other is adhered to the packaging material. After the completion of the heat bonding, the packaging material having the ears is supplied to a predetermined place by the paper feed roller.

[0007]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described below in detail with reference to the illustrated embodiments. Reference numeral 1 denotes a roll of wrapping paper to which a heat-fusible material for heat-sealing is adhered to the back surface, and the roll 1 is a roller 2, 3, 4, for tensioning at a predetermined pressure.
The packaging material is supplied to the apparatus according to the present invention via 5,6. The automatic folding apparatus according to the present invention allows the packaging material a to pass between the base 7 on which the packaging material a slides and the base 7 parallel to the base 7 and joined at both ends of the base. A pair of bent plates 8 and 9 having a gap, a vertical plate 10 is connected along the center line of the packaging material a moving on the base 7, and a horizontal plate 12 is connected along the vertical plate 10. A pair of heat rollers 14 and 16 for thermally bonding a bent portion B formed of a fixed base having a T-shaped cross section and an ear c of the packaging material formed by the bent portion B behind the bent portion B. And two pairs of paper feed rollers 19, 19 for feeding the packaging material formed behind the heat rollers 14, 16.

The bent portion B of the device according to the present embodiment
Then, the peripheral edges of the bent plates 8 and 9 along the vertical plate 10 are separated from the vertical plate 10 by a predetermined distance.
A notch 18 is formed so as to widen toward the side. Therefore, at the end of the apparatus, as shown in FIG. 4, the ends of the bending plates 8 and 9 are located just below the vertical plate 10 of the fixed base, and at the middle of the apparatus, the bending plates 8 and 9 are bent as shown in FIG. The ends of the plates 8 and 9 are under the vertical plate 10. As a result, the notches 18 of the bent plates 8 and 9 serve to pull the packaging material a toward the center by pulling the packaging material a with the rollers 19 and 19. In this embodiment, the notches 18 in the bent plates 8 and 9 are used.
Is configured to be linear, but is not limited thereto, and may be formed in an arc shape. Further, it is preferable to form rounds at the corners of the bent plates 8 and 9. Further, the peripheral portion of the notch 18 is preferably subjected to Teflon processing so that the friction coefficient becomes as small as possible. Also,
Because of the width of the packaging material a at the notch 18 of the bent plates 8 and 9, the periphery of the notched portion of the bent plates 8 and 9 may be formed with a radius as shown in FIGS. The peripheral edges of the bent plates 8 and 9 having passed through the notch 18 are preferably formed so that the cross section thereof has a relatively acute angle so that a fold can be formed on the packaging material a.

Next, heat rollers 14 and 16 are used as a means for fixing the ear c of the folded packaging material in the present apparatus.
The seal part 20 is formed on the ear part c by thermocompression bonding. However, the thermocompression bonding to the ear part c is performed by selecting the heat rollers 14 and 16 so that a, b, c, and d in FIG. There are various ways of sealing as shown in FIG.

In the above-mentioned embodiment, the apparatus for forming two ears c on the packaging material is used.
The present invention can be applied to a device for forming one ear c. That is, in the apparatus of the above-described embodiment, when the packaging material is slid on the bending table without inserting the packaging material into the gap between one of the bending plates and the base, the ear c is attached to the packaging material a by one.
Only one can be formed.

Next, FIG. 7 shows an embodiment showing an apparatus for forming one ear c on the packaging material a, which is connected on the base 7 along the center line of the packaging material a. An inverted L-shaped fixed base comprising a vertical plate 10 and a horizontal plate 12 joined to the vertical plate 10; and a vertical plate 10 inserted between the horizontal plate 12 and the base 7 of the fixed base. A bent plate 9 parallel to the base 7 separated by a predetermined distance is provided, and the bent plate 9 is provided with a notch 18 similar to that described above on the side of the packaging material supply side. Further, in the present embodiment, in consideration of the fact that when the wrapping material is moved along the folding plate 9, the width shifting action also occurs from the side where the folding plate 9 is not mounted, the horizontal plate 12 of the fixed base is placed on the horizontal plate 12. A fixing pressing roller 22 is attached.

In the apparatus according to this embodiment having the above-described structure, the apparatus is bent from the roll 1 on which the packaging material having the heat-melted portion formed on the back surface is wound via the tensioning rollers 2, 4, 5, and 6. The packaging material is supplied to the part B. Then, the packaging material a is made up of the horizontal plate 12 and the bent plates 8 and 9 which
Is moved along the periphery of. However, since the notches 18 are formed on the supply sides of the folding plates 8 and 9, both edges in the traveling direction of the packaging material are shifted toward the center so that the space between the base 7 and the folding plates 8 and 9 is formed. It will slide toward the center. After passing through the notch 18, the packaging material will advance along the line of the peripheral edge of the horizontal plate 12 and the bending plates 8, 9 of the fixed base, and as a result, will be in a state of being bent along the line of the peripheral edge, An ear c composed of a mountain line and a valley line is formed on the packaging material a. The rising portion between the peak line and the valley line is in a state where the heat-melted portions face each other. When this portion is thermocompression-bonded with heat rollers 14 and 16 from the top of the packaging material, the peak line and the valley as shown in FIG. The rise between the lines will be glued. In this embodiment, the ear portion is formed below the packaging material. However, the present invention is not limited to this. For example, if the folded portion of the device is turned upside down by 180 degrees and used, the ear portion is turned upward. A part can be formed.

[0013]

As described above, the apparatus according to the present invention enables the production of a packaging material having a continuous ear, which has not been available in the conventional apparatus, and also provides a packaging material supply unit in existing equipment. If it is combined with, the packaging of foodstuffs etc. can be performed continuously, and its use value is extremely high.

[Brief description of the drawings]

FIG. 1 is a plan view of an apparatus according to the present invention.

FIG. 2 is a side view of the device according to the present invention.

FIG. 3 is a partially transparent perspective view showing a structure of a bent portion of the device according to the present invention.

FIG. 4 is a sectional view taken along line AA of FIG. 3;

FIG. 5 is a sectional view taken along the line BB of FIG. 3;

FIG. 6 is an explanatory view showing various sealing forms of a packaging material.

FIG. 7 is a perspective view schematically showing an apparatus for forming one ear portion on a packaging material.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Roll 2,3,4,5,6 Roller 7 Base 8,9 Folding plate 10 Vertical plate 12 Horizontal plate 14,16 Heat roller 18 Notch 19 Feed roller 20 Seal part 22 Press roller

Claims (3)

(57) [Claims] A base for sliding the packaging material wider than the width of the packaging material; a horizontal plate having a T-shaped cross section connected to a center line of the packaging material moving on the base; A fixed base made of a vertical plate, and a pair of a pair mounted in a line symmetrical manner around the vertical plate of the fixed base and at a predetermined distance from the vertical plate, below the horizontal plate and substantially parallel to the base and the horizontal plate. A folding plate, a heat roller for holding and thermally bonding the fold of the packaging material behind the base, and a feed roller for holding the packaging material behind the heat roller and feeding the paper, An automatic folding apparatus for a packaging material, wherein both ends of a horizontal plate of a fixed base are located outside ends of a bent plate facing each other. 2. The automatic folding device for a packaging material according to claim 1, wherein a notch is provided so as to be wider toward the packaging material supply side of the folding plate. 3. A base for sliding the packaging material wider than the width of the packaging material, and an inverted L-shaped horizontal plate connected to the center line of the packaging material moving on the base. And a fixed base consisting of a vertical plate, a bent plate mounted at a predetermined distance from the vertical plate of the fixed base, below the horizontal plate and substantially parallel to the base and the horizontal plate, and behind the base. A heat roller for holding and thermally bonding the folds of the packaging material; and a feed roller for holding the packaging material behind and feeding the paper behind the heat roller, and an end of the fixed base on the protruding side of the horizontal plate. An automatic folding apparatus for a packaging material, characterized in that the parts are located outside the ends of the bending plates facing each other.